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regression: case class over existential #9326

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scabug opened this Issue May 25, 2015 · 4 comments

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scabug commented May 25, 2015

package test

case class C(data: Iterator[_])
% scalac-hash v2.11.6 sandbox/test.scala
% scalac-hash v2.12.0-M1 sandbox/test.scala
sandbox/test.scala:3: error: object package is not a member of package test
case class C(data: Iterator[_])
                            ^
one error found

Haven't bisected the point of regression yet.

This patch fixes it:

diff --git a/src/compiler/scala/tools/nsc/typechecker/Contexts.scala b/src/compiler/scala/tools/nsc/typechecker/Contexts.scala
index d5a3fba..660cab8 100644
--- a/src/compiler/scala/tools/nsc/typechecker/Contexts.scala
+++ b/src/compiler/scala/tools/nsc/typechecker/Contexts.scala
@@ -996,6 +996,7 @@ trait Contexts { self: Analyzer =>
            s.owner.isClass
         && !s.owner.isPackageClass
         && !s.isTypeParameterOrSkolem
+        && !s.isExistentiallyBound
       )
       def lookupInPrefix(name: Name)    = pre member name filter qualifies
       def accessibleInPrefix(s: Symbol) = isAccessible(s, pre, superAccess = false)
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scabug commented May 25, 2015

Imported From: https://issues.scala-lang.org/browse/SI-9326?orig=1
Reporter: @retronym
Affected Versions: 2.12.0-M1

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scabug commented May 25, 2015

@retronym said:
Regressed in scala/scala@51745c0

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scabug commented May 26, 2015

@scabug scabug closed this May 26, 2015

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scabug commented May 26, 2015

@adriaanm said:
Thanks for the consistency check, AP!

@scabug scabug added this to the 2.12.0-M2 milestone Apr 7, 2017

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